Lenze EVS9330-EI 45 kW 9300 Servo Drive Inverter
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Product Information
The Lenze EVS9330-EI is a standalone 45 kW servo inverter from the Lenze 9300 Servo series, engineered for high-power industrial automation and dynamic motion control tasks. Operating on an input supply voltage ranging from 320 V to 528 V AC, the drive delivers a continuous output current of 89 A and a peak overload current capacity of 133.5 A for up to 60 seconds. Featuring the extended functionality (-EI) designation, this unit integrates an expanded internal function block library directly within the drive hardware. This enables local execution of advanced positioning routines, multi-axis synchronization, and electronic camming without placing additional computational load on central machine controllers.
For physical control and machine integration, the drive provides 8 programmable digital inputs, 4 digital outputs, 2 differential analog inputs, and 2 bipolar analog outputs, along with feedback interfaces supporting resolver, SinCos, incremental, and Hiperface absolute encoders. System connectivity is established via an on-board CAN System Bus running up to 500 kbit/s and a dedicated Automation Interface (AIF) slot designed for plug-in fieldbus modules such as PROFIBUS-DP, DeviceNet, INTERBUS, or RS-232 LECOM serial units. Commissioning and parameter configuration are handled via Lenze Global Drive Control (GDC) software or an optional EMZ9371BC Keypad XT. Parameter sets are stored on a removable EEPROM memory module, allowing technical staff to swap units without manual re-programming. Technical assistance from ABC Industrial Parts can support parameter extraction and backup verification when replacing legacy units.
System status monitoring and diagnostic evaluations are provided by three front-panel LEDs, keypad logbook parameters such as C0168, and fieldbus status words. A solid red LED signals an active TRIP fault state, while a solid or flashing green LED indicates readiness or active pulse inhibit (IMP), and a yellow LED indicates a warning or special operating mode. Diagnostic alarms cover critical events including output short circuits (OC1), ground leakage (OC2), DC bus overvoltage (OU), and heatsink thermal overload (OH). Internal hardware errors such as code H05 or output bridge damage cannot be resolved through parameter changes; in these situations, securing a tested replacement or unit exchange through ABC Industrial Parts provides a efficient solution to resume production.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EVS9330-EI |
| Model / Type | EVS9330-EI |
| Product Family | 9300 Servo |
| Component Type | Servo Drive |
| Rated Power Output | 45 kW |
| Continuous Output Current | 89 A |
| Maximum Peak Output Current | 133.5 A |
| Supply Voltage Range | 320 - 528 V AC |
| Maximum Output Frequency | 480 Hz |
| Switching Frequency | 8 kHz |
| Programmable Digital Inputs | 8 |
| Programmable Digital Outputs | 4 |
| Differential Analog Inputs | 2 |
| Bipolar Analog Outputs | 2 |
| Integrated System Bus | CAN (500 kbit/s max) |
Programming and Configuration
Drive parameterization, function block arrangement, and system diagnostics are managed using Lenze Global Drive Control (GDC) software or the detachable EMZ9371BC Keypad XT module. The extended functionality (-EI) variant incorporates an expanded internal function block structure, permitting complex motion control routines, electronic camming, and multi-axis synchronization to be computed directly inside the inverter hardware.
Application data and drive parameters reside on a removable EEPROM memory module plugged into the front of the unit. When replacing a drive in an existing panel, transferring this EEPROM chip to the spare unit migrates the complete application parameter set immediately, eliminating the need for software engineering tools or re-commissioning procedures.
Communication and System Integration
The EVS9330-EI includes an integrated CAN System Bus interface supporting communications at transmission rates up to 500 kbit/s. This system bus provides direct real-time cross-communication between multiple 9300 servo drives for coordinated motion sequences and electronic gearing applications.
Broader fieldbus integration is achieved via the built-in Automation Interface (AIF) slot. This slot accepts modular plug-in communication options, including the EMF2133IB module for PROFIBUS-DP, the EMF2175IB module for DeviceNet, the EMF2111IB module for INTERBUS, and RS-232 LECOM serial adapters, allowing integration into standard industrial communication topologies.
Diagnostics and Status Indication
Operational health and diagnostic states are monitored through multiple channels, including direct parameter inspection using Global Drive Control (GDC) software, fieldbus status words, and the keypad error logbook accessible at parameter C0168 via the EMZ9371BC Keypad XT.
Visual status indication on the drive faceplate is provided by three distinct LEDs that signal TRIP faults, controller readiness, pulse inhibit activation, warnings, and special operational modes.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Red LED | Red - Solid | TRIP active — indicates drive fault condition or active lock. |
| Green LED | Green - Solid or Flashing | Solid indicates controller ready or normal operation; flashing indicates pulse inhibit (IMP) active. |
| Yellow LED | Yellow - Solid | Warning state, torque limit reached, or special operation mode active. |
Replacement and Spare Part Considerations
When selecting a replacement drive, ensure that the part number matches the extended variant designation EVS9330-EI and the 45 kW power frame size. Standard 9300 models without the -EI suffix lack the expanded function block structure and cannot execute local multi-axis synchronization or electronic camming programs.
Before applying mains power to a spare unit, transfer the existing EEPROM parameter chip from the original drive and verify that any plug-in AIF fieldbus modules (such as PROFIBUS EMF2133IB or DeviceNet EMF2175IB) are fully seated and secured in the interface slot. For long-term system modernizations where replacement 9300 series hardware is no longer suitable, migration to the Lenze Servo Inverter i950 platform is recommended.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OC1 | Short Circuit | Short circuit or extreme overcurrent detected at motor output terminals. | Short circuit in motor cable, short circuit in motor windings, transistor bridge fault. | Check motor and motor cables for insulation faults or short circuits. If fault persists with motor disconnected, internal hardware fault — return unit for repair. |
| OC2 | Earth Fault | Ground fault / earth leakage current exceeded limit. | Ground fault in motor wiring or motor frame, excessively long motor cables, high cable capacitance. | Check motor wiring for ground fault insulation failure. |
| OC5 | I x t Overload | Inverter thermal overload (I x t integration limit exceeded). | Drive operated at continuous excessive load or frequent acceleration cycles without sufficient sizing. | Check machine mechanical load, reduce acceleration ramps, or select larger drive unit. |
| OU | Overvoltage DC Bus | DC bus voltage exceeds maximum threshold limit. | Excessive regenerative energy during deceleration, brake chopper resistor not connected or defective, deceleration ramp too short. | Extend deceleration time, check brake chopper module and external brake resistor connection. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum operating limit. | Mains supply failure, supply phase loss, mains voltage too low, precharge circuit defect. | Check mains voltage supply and line fuses. |
| OH | Heatsink Overtemperature | Inverter heatsink temperature exceeds maximum allowed limit. | Clogged heatsink/cooling fins, defective internal fan, excessive ambient temperature, inadequate cabinet ventilation. | Clean heatsink cooling fins, verify cabinet fan and ambient temperature. |
| OH3 | Motor Overtemperature | Motor temperature sensor triggered thermal fault. | Motor thermal overload, KTY/PTC sensor defective, loose connection at T1/T2 terminals. | Allow motor to cool down, check motor load and temperature sensor wiring at terminals T1/T2. |
| OH4 | Inside Temperature High | Internal control board temperature too high. | Control cabinet temperature excessive, fan failure. | Improve cooling inside control cabinet. |
| NMAX | Speed Limit Exceeded | Actual speed exceeded maximum configured threshold (C0596). | Unstable speed control loop, wrong encoder resolution configured, load driving motor. | Check speed controller tuning, encoder parameters, and mechanical load. |
| H05 | Internal Hardware Error | Internal controller board error / processor system fault. | Control electronics hardware failure, severe EMC disturbance. | Internal board hardware fault — return unit for repair or replace drive. |
| EER | EEPROM Fault | Error reading or writing data in memory module EEPROM. | Defective memory module, corrupt parameter set. | Re-initialize parameters or replace memory module. |
| CE0 | AIF Communication Error | Communication failure between inverter and Automation Interface module. | Loose fieldbus module, bad contact on AIF interface, defective fieldbus module. | Check seating and fastening of plug-in fieldbus module in AIF slot. |
| CE1 | CAN Communication Error | Time-out or bus-off error on System Bus (CAN). | Interrupted CAN connection, missing termination resistors, baud rate mismatch. | Check CAN cabling, bus termination (120 Ohm), and baud rate setting. |
| LP1 | Mains Phase Loss | One of the incoming AC mains supply phases is missing. | Blown input line fuse, damaged supply cable, phase imbalance. | Check input supply voltages L1, L2, L3 under load. |
Frequently Asked Questions
What does the -EI suffix represent in the Lenze EVS9330-EI part number?
The -EI designation identifies an extended functionality variant equipped with an expanded internal function block library. This feature enables complex motion control, positioning, multi-axis synchronization, and electronic camming directly on the drive hardware.
How are parameter settings transferred when replacing an EVS9330-EI drive?
The drive utilizes a plug-in EEPROM memory chip. Moving this EEPROM module from the original drive into the replacement unit restores all application settings and configuration parameters without software re-commissioning.
Which communication fieldbus modules fit into the EVS9330-EI AIF slot?
The Automation Interface (AIF) slot supports optional plug-in modules, including the EMF2133IB (PROFIBUS-DP), EMF2175IB (DeviceNet), EMF2111IB (INTERBUS), and RS-232 LECOM serial interfaces, in addition to the on-board CAN System Bus.
What feedback options are supported by the EVS9330-EI?
The inverter includes feedback connections for resolvers, SinCos encoders, high-resolution incremental encoders, and Hiperface absolute encoders.
What action is required if fault code OC1 or H05 appears?
Fault code OC1 indicates a short circuit at the motor terminals, while H05 indicates an internal hardware error. If OC1 remains active after disconnecting the motor cables, or if H05 occurs, the issue is caused by internal hardware failure and requires repair or drive replacement.
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Specific firmware and hardware versions
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